Trait ndarray_rand::RandomExt

pub trait RandomExt<S, D> where
    S: DataOwned,
    D: Dimension, {
    fn random<Sh, IdS>(shape: Sh, distribution: IdS) -> ArrayBase<S, D>
    where
        IdS: IndependentSample<S::Elem>,
        Sh: ShapeBuilder<Dim = D>;
    fn random_using<Sh, IdS, R>(
        shape: Sh, 
        distribution: IdS, 
        rng: &mut R
    ) -> ArrayBase<S, D>
    where
        IdS: IndependentSample<S::Elem>,
        R: Rng,
        Sh: ShapeBuilder<Dim = D>;
}

Constructors for n-dimensional arrays with random elements.

This trait extends ndarray’s ArrayBase and can not be implemented for other types.

The default Rng is a fast automatically seeded rng (currently rand::weak_rng).

Required Methods

fn random<Sh, IdS>(shape: Sh, distribution: IdS) -> ArrayBase<S, D> where
    IdS: IndependentSample<S::Elem>,
    Sh: ShapeBuilder<Dim = D>, 

Create an array with shape dim with elements drawn from distribution using the default rng.

Panics if the number of elements overflows usize.

extern crate rand;
extern crate ndarray;
extern crate ndarray_rand;

use rand::distributions::Range;
use ndarray::Array;
use ndarray_rand::RandomExt;

let a = Array::random((2, 5), Range::new(0., 10.));
println!("{:8.4}", a);
// Example Output:
// [[  8.6900,   6.9824,   3.8922,   6.5861,   2.4890],
//  [  0.0914,   5.5186,   5.8135,   5.2361,   3.1879]]

fn random_using<Sh, IdS, R>(
    shape: Sh,
    distribution: IdS,
    rng: &mut R
) -> ArrayBase<S, D> where
    IdS: IndependentSample<S::Elem>,
    R: Rng,
    Sh: ShapeBuilder<Dim = D>, 

Create an array with shape dim with elements drawn from distribution, using a specific Rng rng.

Panics if the number of elements overflows usize.

Implementations on Foreign Types

impl<S, D> RandomExt<S, D> for ArrayBase<S, D> where
    S: DataOwned,
    D: Dimension, 

fn random<Sh, IdS>(shape: Sh, dist: IdS) -> ArrayBase<S, D> where
    IdS: IndependentSample<S::Elem>,
    Sh: ShapeBuilder<Dim = D>, 

fn random_using<Sh, IdS, R>(
    shape: Sh,
    dist: IdS,
    rng: &mut R
) -> ArrayBase<S, D> where
    IdS: IndependentSample<S::Elem>,
    R: Rng,
    Sh: ShapeBuilder<Dim = D>, 

Implementors